1160 pages

PICKERING SERIES 116
Single-in-Line reed relays
10 Watts switching - Very high packing density
1 Form A stacks on 0.15 x 0.27 inches pitch
2 Form A stacks on 0.15 x 0.40 inches pitch
w
Ne olt
3 V sion
r
Ve
FEATURES
SoftCenter™ construction (see opposite)
Plastic package with internal mu-metal magnetic
screen
They take up the minimum of board area,
conserving board space
3, 5 or 12 Volt coils with optional internal diode
0.145 nominal (3.70)
0.15 maximum (3.81)
0.26 nominal (6.60)
0.27 maximum (6.86)
100% tested for dynamic contact resistance for
guaranteed performance
0.61 maximum (15.5)
The Pickering Series 116 is a range of Single-in-Line relays
intended for very high density applications such as A.T.E.
switching matrices or multiplexers.
Switches have sputtered ruthenium contacts making them
ideal for low level or “cold” switching applications.
1 or 2 pole, Form A (energize to make) versions are available.
The single pole version uses the same switch and coil
assembly as the Pickering Series 112.
Single switch versions require a board area of only 0.15 inches
x 0.27 inches. This is one quarter of the board area of the
industry standard 0.2 x 0.8 inches Single-in-Line packge.
The very small size of these relays often makes it possible to
increase the functionality of existing designs without increasing
the size of printed circuit boards.
The relays feature an internal mu-metal magnetic screen.
Mu-metal has the advantage of a high permeability and low
magnetic remanence and eliminates problems that would
otherwise occur due to magnetic interaction. Interaction is
usually measured as a percentage increase in the voltage
required to operate a relay when additional relays, stacked
each side, are themselves operated. An unscreened device
mounted on this pitch would have an interaction figure of
around 40 percent. Relays of this size without magnetic
screening would therefore be totally unsuitable for applications
where dense packing is required.
Dimensions in Inches
(Millimetres in brackets)
Pickering SoftCenter™ Construction
TYPICAL PICKERING CONSTRUCTION
Encapsulation
Shell
PICKERING
They have a switch rating of 10 Watts, 0.5 A and are pin
compatible with the Pickering Series 117 which have a lower
power rating of 3 Watts and a lower profile height of 0.38
inches (9.65 mm).
Pin 1
Internal mu-metal magnetic screen
permitting high packing density without
magnetic interaction
1 Form A
Diode
PICKERING
England
116-2-A-5/2D
2 Form A
Actual size
Former-less
operating coil
Delicate
glass/metal
reed switch seal.
Must be
protected
116-1-A-5/2D
Insulation resistance greater than 1012 Ω
Instrumentation
grade
reed switch
TYPICAL COMPETITOR’S CONSTRUCTION
www.pickeringrelay.com
Highest quality instrumentation grade switches
No mu-metal
magnetic screen
Internal
mu-metal
magnetic
screen
Encapsulation Soft inner
Shell
encapsulation
material
to protect
reed switch
Bobbinless
self
supporting
coil to
maximise
magnetic drive
3 volt, 5 volt or 12 volt coils are available. An internal Back
E.M.F suppression diode is available as an option.
pickering
www.pickeringrelay.com
Very hard
moulding material
High magnetic
interaction
with adjacent
relays
Reed switch
Diode
Coil winding
Hard outer
encapsulation
material
Coil supporting
bobbin,
wastes space
and reduces
magnetic drive
pickering
116/08/10